Dilution Test: Take 100 grams of emulsion pesticide and mix it with 300 grams of water in a glass bottle. Shake the bottle vigorously, then let it sit for 30 minutes. If the mixture is not uniform, shows an oily layer on top, or has sediment at the bottom, the pesticide may have lost its effectiveness. The more emulsified the liquid appears, the worse its quality tends to be.
Floating Test: Take 1 gram of wettable powder pesticide and spread it evenly into 200 ml of clean water. If the powder is fully wetted within one minute and sinks to the bottom, it's a sign that the pesticide is still effective. If it floats or doesn’t dissolve quickly, it might be degraded or expired.
Shaking Test: If the oil and water components of an emulsion pesticide separate, shake the bottle forcefully. Let it rest for one hour. If the separation layer remains visible, the product is likely no longer effective.
Hot Dissolution Test: Place the emulsion pesticide containing sediment into warm water at 50°C. After one hour, if the sediment dissolves slowly, the pesticide is still usable. However, if the sediment is hard to dissolve or remains unchanged, the product may have deteriorated.
Suspension Test: Take 50 grams of wettable powder pesticide and add it to a glass container filled with water. Stir thoroughly and let it sit for 10 minutes. If the powder does not dissolve well and forms large particles that settle quickly, it indicates poor quality or failure.
These simple tests can help you determine the quality and effectiveness of your pesticides before use. Always ensure proper storage and follow manufacturer guidelines to maintain performance. For more detailed information on pesticides and their applications, visit China Pesticide Network, your reliable source for comprehensive pesticide knowledge.
Our Spring Tine is good in quality and competitive in price. We are manufacturer and supplier of Spring Tine following your specific requirement. We are looking forward to your E-mail and establishing cooperative relationship with you! We would provide professional Spring Tine with good services for you!
Spring Tine, Cultivator Spring Tines, Harvester Spring Tine
NINGBO BORINE MACHINERY CO.,LTD , https://www.borine-agroparts.com